X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fcore%2Ftransition_luma.c;h=6c57339257a1f85dbc8007e6e5a4dcd1e730b3f4;hb=d7f9be0634acea4a311066054258d2b0f6b4b7a5;hp=fc712eaa0c15f22839536cb605b3cd0e0a203dce;hpb=6336039a203c6496691784682f9ad56eb13abcc3;p=melted

diff --git a/src/modules/core/transition_luma.c b/src/modules/core/transition_luma.c
index fc712ea..6c57339 100644
--- a/src/modules/core/transition_luma.c
+++ b/src/modules/core/transition_luma.c
@@ -35,7 +35,7 @@ typedef struct
 	char *filename;
 	int width;
 	int height;                                      		
-	double *bitmap;
+	float *bitmap;
 }
 transition_luma;
 
@@ -46,7 +46,7 @@ static void transition_close( mlt_transition parent );
 
 // image processing functions
 
-static inline double smoothstep( double edge1, double edge2, double a )
+static inline float smoothstep( float edge1, float edge2, float a )
 {
 	if ( a < edge1 )
 		return 0.0;
@@ -59,54 +59,167 @@ static inline double smoothstep( double edge1, double edge2, double a )
 	return ( a * a * ( 3 - 2 * a ) );
 }
 
+static int frame_composite_yuv( mlt_frame this, mlt_frame that, int x, int y, float weight, int *width, int *height )
+{
+	int ret = 0;
+	int width_src = *width, height_src = *height;
+	int width_dest = *width, height_dest = *height;
+	mlt_image_format format_src = mlt_image_yuv422, format_dest = mlt_image_yuv422;
+	uint8_t *p_src, *p_dest;
+	int i, j;
+	int stride_src;
+	int stride_dest;
+	int x_src = 0, y_src = 0;
+
+	// optimization point - no work to do
+	if ( ( x < 0 && -x >= width_src ) || ( y < 0 && -y >= height_src ) )
+		return ret;
+
+	format_src = mlt_image_yuv422;
+	format_dest = mlt_image_yuv422;
+
+	mlt_frame_get_image( this, &p_dest, &format_dest, &width_dest, &height_dest, 1 /* writable */ );
+	mlt_frame_get_image( that, &p_src, &format_src, &width_src, &height_src, 0 /* writable */ );
+
+	stride_src = width_src * 2;
+	stride_dest = width_dest * 2;
+	
+	// crop overlay off the left edge of frame
+	if ( x < 0 )
+	{
+		x_src = -x;
+		width_src -= x_src;
+		x = 0;
+	}
+	
+	// crop overlay beyond right edge of frame
+	else if ( x + width_src > width_dest )
+		width_src = width_dest - x;
+
+	// crop overlay off the top edge of the frame
+	if ( y < 0 )
+	{
+		y_src = -y;
+		height_src -= y_src;
+	}
+	// crop overlay below bottom edge of frame
+	else if ( y + height_src > height_dest )
+		height_src = height_dest - y;
+
+	// offset pointer into overlay buffer based on cropping
+	p_src += x_src * 2 + y_src * stride_src;
+
+	// offset pointer into frame buffer based upon positive, even coordinates only!
+	p_dest += ( x < 0 ? 0 : x ) * 2 + ( y < 0 ? 0 : y ) * stride_dest;
+
+	// Get the alpha channel of the overlay
+	uint8_t *p_alpha = mlt_frame_get_alpha_mask( that );
+
+	// offset pointer into alpha channel based upon cropping
+	if ( p_alpha )
+		p_alpha += x_src + y_src * stride_src / 2;
+
+	uint8_t *p = p_src;
+	uint8_t *q = p_dest;
+	uint8_t *o = p_dest;
+	uint8_t *z = p_alpha;
+
+	uint8_t Y;
+	uint8_t UV;
+	uint8_t a;
+	float value;
+
+	// now do the compositing only to cropped extents
+	for ( i = 0; i < height_src; i++ )
+	{
+		p = p_src;
+		q = p_dest;
+		o = p_dest;
+		z = p_alpha;
+
+		for ( j = 0; j < width_src; j ++ )
+		{
+			Y = *p ++;
+			UV = *p ++;
+			a = ( z == NULL ) ? 255 : *z ++;
+			value = ( weight * ( float ) a / 255.0 );
+			*o ++ = (uint8_t)( Y * value + *q++ * ( 1 - value ) );
+			*o ++ = (uint8_t)( UV * value + *q++ * ( 1 - value ) );
+		}
+
+		p_src += stride_src;
+		p_dest += stride_dest;
+		if ( p_alpha )
+			p_alpha += stride_src / 2;
+	}
+
+	return ret;
+}
+
 /** powerful stuff
 
     \param field_order -1 = progressive, 0 = lower field first, 1 = top field first
 */
-static void luma_composite( mlt_frame this, mlt_frame b_frame, int luma_width, int luma_height,
-							double *luma_bitmap, double pos, double frame_delta, double softness, int field_order )
+static void luma_composite( mlt_frame a_frame, mlt_frame b_frame, int luma_width, int luma_height,
+							float *luma_bitmap, float pos, float frame_delta, float softness, int field_order,
+							int *width, int *height )
 {
-	int width_src, height_src;
-	int width_dest, height_dest;
-	mlt_image_format format_src, format_dest;
+	int width_src = *width, height_src = *height;
+	int width_dest = *width, height_dest = *height;
+	mlt_image_format format_src = mlt_image_yuv422, format_dest = mlt_image_yuv422;
 	uint8_t *p_src, *p_dest;
 	int i, j;
 	int stride_src;
 	int stride_dest;
-	double weight = 0;
+	float weight = 0;
 	int field;
 
 	format_src = mlt_image_yuv422;
 	format_dest = mlt_image_yuv422;
 
-	mlt_frame_get_image( this, &p_dest, &format_dest, &width_dest, &height_dest, 1 /* writable */ );
+	mlt_frame_get_image( a_frame, &p_dest, &format_dest, &width_dest, &height_dest, 1 /* writable */ );
 	mlt_frame_get_image( b_frame, &p_src, &format_src, &width_src, &height_src, 0 /* writable */ );
 
 	stride_src = width_src * 2;
 	stride_dest = width_dest * 2;
 
+	// Offset the position based on which field we're looking at ...
+	float field_pos[ 2 ];
+	field_pos[ 0 ] = pos + ( ( field_order == 0 ? 1 : 0 ) * frame_delta * 0.5 );
+	field_pos[ 1 ] = pos + ( ( field_order == 0 ? 0 : 1 ) * frame_delta * 0.5 );
+
+	// adjust the position for the softness level
+	field_pos[ 0 ] *= ( 1.0 + softness );
+	field_pos[ 1 ] *= ( 1.0 + softness );
+
+	uint8_t *p;
+	uint8_t *q;
+	uint8_t *o;
+	float  *l;
+
+	uint8_t y;
+	uint8_t uv;
+   	float value;
+
+	float x_diff = ( float )luma_width / ( float )*width;
+	float y_diff = ( float )luma_height / ( float )*height;
+
 	// composite using luma map
 	for ( field = 0; field < ( field_order < 0 ? 1 : 2 ); ++field )
 	{
-		// Offset the position based on which field we're looking at ...
-		double field_pos = pos + ( ( field_order == 0 ? 1 - field : field) * frame_delta * 0.5 );
-
-		// adjust the position for the softness level
-		field_pos *= ( 1.0 + softness );
-
 		for ( i = field; i < height_src; i += ( field_order < 0 ? 1 : 2 ) )
 		{
-			uint8_t *p = &p_src[ i * stride_src ];
-			uint8_t *q = &p_dest[ i * stride_dest ];
-			uint8_t *o = &p_dest[ i * stride_dest ];
-			double  *l = &luma_bitmap[ i * luma_width ];
+			p = &p_src[ i * stride_src ];
+			q = &p_dest[ i * stride_dest ];
+			o = &p_dest[ i * stride_dest ];
+			l = &luma_bitmap[ ( int )( ( float )i * y_diff ) * luma_width ];
 
 			for ( j = 0; j < width_src; j ++ )
 			{
-				uint8_t y = *p ++;
-				uint8_t uv = *p ++;
-                weight = *l ++;
-				double value = smoothstep( weight, weight + softness, field_pos );
+				y = *p ++;
+				uv = *p ++;
+             	weight = l[ ( int )( ( float )j * x_diff ) ];
+   				value = smoothstep( weight, weight + softness, field_pos[ field ] );
 
 				*o ++ = (uint8_t)( y * value + *q++ * ( 1 - value ) );
 				*o ++ = (uint8_t)( uv * value + *q++ * ( 1 - value ) );
@@ -130,90 +243,47 @@ static int transition_get_image( mlt_frame this, uint8_t **image, mlt_image_form
 	mlt_properties b_props = mlt_frame_properties( b_frame );
 
 	// Arbitrary composite defaults
-	static double previous_mix = 0;
-	double mix = 0;
-	int luma_width = 0;
-	int luma_height = 0;
-	double *luma_bitmap = NULL;
-	double luma_softness = 0;
-	int progressive = 0;
-	int top_field_first = 0;
-
-	// mix is the offset time value in the duration of the transition
-	// - also used as the mixing level for a dissolve
-	if ( mlt_properties_get( b_props, "mix" ) != NULL )
-		mix = mlt_properties_get_double( b_props, "mix" );
-
-	// (mix - previous_mix) is the animation delta, if backwards reset previous
-	if ( mix < previous_mix )
-		previous_mix = 0;
-
-	// Get the interlace and field properties of the frame
-	if ( mlt_properties_get( b_props, "progressive" ) != NULL )
-		progressive = mlt_properties_get_int( b_props, "progressive" );
-	if ( mlt_properties_get( b_props, "top_field_first" ) != NULL )
-		top_field_first = mlt_properties_get_int( b_props, "top_field_first" );
-
-	// Get the luma map parameters
-	if ( mlt_properties_get( b_props, "luma.width" ) != NULL )
-		luma_width = mlt_properties_get_int( b_props, "luma.width" );
-	if ( mlt_properties_get( b_props, "luma.height" ) != NULL )
-		luma_height = mlt_properties_get_int( b_props, "luma.height" );
-	if ( mlt_properties_get( b_props, "luma.softness" ) != NULL )
-		luma_softness = mlt_properties_get_double( b_props, "luma.softness" );
-	luma_bitmap = (double*) mlt_properties_get_data( b_props, "luma.bitmap", NULL );
+	float frame_delta = 1 / mlt_properties_get_double( b_props, "fps" );
+	float mix = mlt_properties_get_double( b_props, "image.mix" );
+	int luma_width = mlt_properties_get_int( b_props, "luma.width" );
+	int luma_height = mlt_properties_get_int( b_props, "luma.height" );
+	float *luma_bitmap = mlt_properties_get_data( b_props, "luma.bitmap", NULL );
+	float luma_softness = mlt_properties_get_double( b_props, "luma.softness" );
+	int progressive = mlt_properties_get_int( b_props, "progressive" ) || mlt_properties_get_int( a_props, "consumer_progressive" );
+	int top_field_first =  mlt_properties_get_int( b_props, "top_field_first" );
+	int reverse = mlt_properties_get_int( b_props, "luma.reverse" );
+
+	// Since we are the consumer of the b_frame, we must pass along this
+	// consumer property from the a_frame
+	mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
+	mlt_properties_set_double( b_props, "consumer_scale", mlt_properties_get_double( a_props, "consumer_scale" ) );
+		
+	// Honour the reverse here
+	mix = reverse ? 1 - mix : mix;
+
+	// Ensure we get scaling on the b_frame
+	mlt_properties_set( b_props, "rescale.interp", "nearest" );
 
 	if ( luma_width > 0 && luma_height > 0 && luma_bitmap != NULL )
 		// Composite the frames using a luma map
-		luma_composite( this, b_frame, luma_width, luma_height, luma_bitmap, mix, mix - previous_mix,
-			luma_softness, progressive > 0 ? -1 : top_field_first );
+		luma_composite( this, b_frame, luma_width, luma_height, luma_bitmap, mix, frame_delta,
+			luma_softness, progressive ? -1 : top_field_first, width, height );
 	else
 		// Dissolve the frames using the time offset for mix value
-		mlt_frame_composite_yuv( this, b_frame, 0, 0, mix );
+		frame_composite_yuv( this, b_frame, 0, 0, mix, width, height );
 
 	// Extract the a_frame image info
 	*width = mlt_properties_get_int( a_props, "width" );
 	*height = mlt_properties_get_int( a_props, "height" );
 	*image = mlt_properties_get_data( a_props, "image", NULL );
 
-	// Close the b_frame
-	mlt_frame_close( b_frame );
-	
-	previous_mix = mix;
-
 	return 0;
 }
 
-static int transition_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
-{
-	// Get the properties of the a frame
-	mlt_properties a_props = mlt_frame_properties( frame );
-
-	// Get the b frame from the stack
-	mlt_frame b_frame = mlt_frame_pop_frame( frame );
-
-	// Get the properties of the b frame
-	mlt_properties b_props = mlt_frame_properties( b_frame );
-
-	// Restore the original get_audio
-	frame->get_audio = mlt_properties_get_data( a_props, "get_audio", NULL );
-	
-	double mix = 0;
-	if ( mlt_properties_get( b_props, "mix" ) != NULL )
-		mix = mlt_properties_get_double( b_props, "mix" );
-	mlt_frame_mix_audio( frame, b_frame, mix, buffer, format, frequency, channels, samples );
-
-	// Push the b_frame back on for get_image
-	mlt_frame_push_frame( frame, b_frame );
-
-	return 0;
-}
-
-
 /** Load the luma map from PGM stream.
 */
 
-static void luma_read_pgm( FILE *f, double **map, int *width, int *height )
+static void luma_read_pgm( FILE *f, float **map, int *width, int *height )
 {
 	uint8_t *data = NULL;
 	while (1)
@@ -222,7 +292,7 @@ static void luma_read_pgm( FILE *f, double **map, int *width, int *height )
 		int i = 2;
 		int maxval;
 		int bpp;
-		double *p;
+		float *p;
 		
 		line[127] = '\0';
 
@@ -267,7 +337,9 @@ static void luma_read_pgm( FILE *f, double **map, int *width, int *height )
 
 		// determine if this is one or two bytes per pixel
 		bpp = maxval > 255 ? 2 : 1;
-			// allocate temporary storage for the raw data
+		
+		// allocate temporary storage for the raw data
+		// IRRIGATE ME
 		data = malloc( *width * *height * bpp );
 		if ( data == NULL )
 			break;
@@ -277,7 +349,8 @@ static void luma_read_pgm( FILE *f, double **map, int *width, int *height )
 			break;
 		
 		// allocate the luma bitmap
-		*map =  p = (double*) malloc( *width * *height * sizeof( double ) );
+		// IRRIGATE ME
+		*map =  p = (float*) malloc( *width * *height * sizeof( float ) );
 		if ( *map == NULL )
 			break;
 
@@ -285,9 +358,9 @@ static void luma_read_pgm( FILE *f, double **map, int *width, int *height )
 		for ( i = 0; i < *width * *height * bpp; i += bpp )
 		{
 			if ( bpp == 1 )
-				*p++ = (double) data[ i ] / (double) maxval;
+				*p++ = (float) data[ i ] / (float) maxval;
 			else
-				*p++ = (double) ( ( data[ i ] << 8 ) + data[ i+1 ] ) / (double) maxval;
+				*p++ = (float) ( ( data[ i ] << 8 ) + data[ i+1 ] ) / (float) maxval;
 		}
 
 		break;
@@ -312,57 +385,39 @@ static mlt_frame transition_process( mlt_transition transition, mlt_frame a_fram
 	mlt_properties b_props = mlt_frame_properties( b_frame );
 
 	// If the filename property changed, reload the map
-	char *luma_file = mlt_properties_get( properties, "filename" );
+	char *luma_file = mlt_properties_get( properties, "resource" );
 	if ( luma_file != NULL && ( this->filename == NULL || ( this->filename && strcmp( luma_file, this->filename ) ) ) )
 	{
-		int width = mlt_properties_get_int( b_props, "width" );
-		int height = mlt_properties_get_int( b_props, "height" );
-		char command[ 512 ];
 		FILE *pipe;
 		
-		command[ 511 ] = '\0';
-		if ( this->filename )
-			free( this->filename );
+		free( this->filename );
 		this->filename = strdup( luma_file );
-		snprintf( command, 511, "anytopnm %s | pnmscale -width %d -height %d", luma_file, width, height );
-		//pipe = popen( command, "r" );
 		pipe = fopen( luma_file, "r" );
 		if ( pipe != NULL )
 		{
-			if ( this->bitmap )
-				free( this->bitmap );
+			free( this->bitmap );
 			luma_read_pgm( pipe, &this->bitmap, &this->width, &this->height );
-			//pclose( pipe );
 			fclose( pipe );
 		}
-		
 	}
 
 	// Determine the time position of this frame in the transition duration
 	mlt_position in = mlt_transition_get_in( transition );
 	mlt_position out = mlt_transition_get_out( transition );
 	mlt_position time = mlt_frame_get_position( b_frame );
-	double pos = ( (double)time - (double)in ) / ( (double)out - (double)in + 1 );
+	float pos = ( float )( time - in ) / ( float )( out - in + 1 );
 	
 	// Set the b frame properties
-	mlt_properties_set_double( b_props, "mix", pos );
+	mlt_properties_set_double( b_props, "image.mix", pos );
 	mlt_properties_set_int( b_props, "luma.width", this->width );
 	mlt_properties_set_int( b_props, "luma.height", this->height );
 	mlt_properties_set_data( b_props, "luma.bitmap", this->bitmap, 0, NULL, NULL );
-	if ( mlt_properties_get( properties, "softness" ) != NULL )
-		mlt_properties_set_double( b_props, "luma.softness", mlt_properties_get_double( properties, "softness" ) );
+	mlt_properties_set_int( b_props, "luma.reverse", mlt_properties_get_int( properties, "reverse" ) );
+	mlt_properties_set_double( b_props, "luma.softness", mlt_properties_get_double( properties, "softness" ) );
 
 	mlt_frame_push_get_image( a_frame, transition_get_image );
 	mlt_frame_push_frame( a_frame, b_frame );
 
-/************************ AUDIO ***************************/
-#if 1
-	// Backup the original get_audio (it's still needed)
-	mlt_properties_set_data( mlt_frame_properties( a_frame ), "get_audio", a_frame->get_audio, 0, NULL, NULL );
-
-	// Override the get_audio method
-	a_frame->get_audio = transition_get_audio;
-#endif
 	return a_frame;
 }
 
@@ -378,10 +433,7 @@ mlt_transition transition_luma_init( char *lumafile )
 		mlt_transition_init( transition, this );
 		transition->process = transition_process;
 		transition->close = transition_close;
-
-		if ( lumafile != NULL )
-			mlt_properties_set( mlt_transition_properties( transition ), "filename", lumafile );
-		
+		mlt_properties_set( mlt_transition_properties( transition ), "resource", lumafile );
 		return &this->parent;
 	}
 	return NULL;
@@ -393,13 +445,8 @@ mlt_transition transition_luma_init( char *lumafile )
 static void transition_close( mlt_transition parent )
 {
 	transition_luma *this = (transition_luma*) parent->child;
-
-	if ( this->bitmap )
-		free( this->bitmap );
-	
-	if ( this->filename )
-		free( this->filename );
-
+	free( this->bitmap );
+	free( this->filename );
 	free( this );
 }